| Re: Nasty compatibility issue in lists and hashes (and maybe more?) [message #76305] |
Thu, 26 May 2011 09:29 |
penteado
Messages: 866
Registered: February 2018
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Senior Member
Administrator |
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On May 25, 11:51 pm, Paulo Penteado <pp.pente...@gmail.com> wrote:
> After some time trying to figure out what was going on, I eventually
> found that the changes in some classes between 8.0.1 and 8.1 break
> compatibility of some savefiles, in both ways: not only 8.1 savefiles
> cause trouble when restored in 8.0.1, but also 8.0.1 savefiles cause
> trouble when restored in 8.1
It has been pointed out to me that this is one of the cases that can
be solved with restore's /relaxed_structure_assignment keyword (which
can suggestively be abbreviated as /relax). The classes are compatible
enough that restore can instantiate the native class and copy the data
fields by name.
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| Re: Nasty compatibility issue in lists and hashes (and maybe more?) [message #76306 is a reply to message #76305] |
Thu, 26 May 2011 09:23  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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David Fanning writes:
> Paulo Penteado writes:
>
>> After some time trying to figure out what was going on, I eventually
>> found that the changes in some classes between 8.0.1 and 8.1 break
>> compatibility of some savefiles, in both ways: not only 8.1 savefiles
>> cause trouble when restored in 8.0.1, but also 8.0.1 savefiles cause
>> trouble when restored in 8.1
>
> I have confirmed this is a problem on Windows computers, too.
I have been waiting for Paulo to fill you in on how this
problem can be resolved, but he appears to be out of his
office this morning. In the meantime, if you are interested,
I have posted an article on the topic.
http://www.idlcoyote.com/misc_tips/backsave.php
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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| Re: Nasty compatibility issue in lists and hashes (and maybe more?) [message #76311 is a reply to message #76306] |
Thu, 26 May 2011 06:18 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Paulo Penteado writes:
> After some time trying to figure out what was going on, I eventually
> found that the changes in some classes between 8.0.1 and 8.1 break
> compatibility of some savefiles, in both ways: not only 8.1 savefiles
> cause trouble when restored in 8.0.1, but also 8.0.1 savefiles cause
> trouble when restored in 8.1
I have confirmed this is a problem on Windows computers, too.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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